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Reduces alkalinity in spa water. Its fast acting and odorless formula 100% soluble does not influence total dissolved solids like regular granular formulas.

Directions for use:

1. Maintain proper daily levels.
2. If levels are higher, add 60mL of Alkalinity- per 1,000L of spa water to decrease pH of 0.4 and alkalinity of 14 ppm.
3. Spa must be in operation before adding alkalinity-.
4. Wait 15 minutes and retest pH and alkalinity.
5. Repeat operation until recommended levels are reached.